American Signal Corp

American Signal Corp (ACS) is a designer and manufacturer of mass notification systems such as air raids, tsunami warnings, speaker systems, emergency information, and critical non-emergency information systems. ACS systems include control stations that link sirens, outdoor digital signage, phone systems, and mobile alerts for comprehensive emergency alert systems used by the military, event venues, government, nuclear facilities, industrial, and educational markets. ACS is headquartered in Milwaukee, Wisconsin.